adj.推向市场的
动词market的过去式和过去分词形式.
Spencer continued to experiment with the magnetron until he boxed it in and marketed it as a new way to cook food. 斯宾塞继续实验磁电管，最后，他用箱子将其包装起来，作为一种烹饪美食的新工具推向市场。
